Doorbell



Patented July ltl, 1.923

* STATE l ihl ili' rennin min NTQ

DOORBELL.

Application filed April 4-, 1922. Serial No. 549,541.

To aZZ whom it may concern Be'it known thatI, J OHN ALEXANDER BA- GINLEY, a citizen of the United States, and a resident of Hoquiam, in the county of Grays Harbor and State of Washington, have invented certain new and useful Improvements in Doorbells, of which the following is a specification.

This invention relates to a door bell.

The object-of the invention is to provide means whereby a bell may be carried on the knobs of a door in such a manner that the bell may be easily operated from the exterior door knob of a door.

It is alsoan important object of the in vention that the bell carried by the door knobs will in no way lessen the artistic appearance thereof.

It is a further object of the invention that the hell be positive in operation and not sub ject to getting out of order.

Other objects and objects relating to details of construction, combination and arrangement of parts will hereinafter appear in the detailed description to follow.

The invention is illustrated in the accompanying drawings, in which:

Fig. 1 is a sectional view of a pair of knobs when applied to a door and showing the preferred construction for embodying the door bell with the knobs,

Fig. 2 is an outer face view of the outer or exterior door knob,

Fig. 3 is'an outer face view of the inner section or part of the interior door knob,

Fig. 4 is an inside elevation of the outer section of the interior door knob, and

Fig. 5 is a transverse sectional view taken through the knob spindle.

Referring to the drawings more particularly, 10 indicates a section of a door which has secured upon its exterior and interior sides, the bearing plates 11 and 12 respectively. Through the bearing plates 11 and 12 there extendsthe usual knob spindle 13 which in this instance is longitudinally divided into the three sections 14 in Fig. 5 and said sections being so formed that when assembled there will occur a central bore 15 extending the entire length of the spindle 13 and said bore being adapted to accommodate a rod 16.

For the outer end of the spindle 13 there is provided the knob K and for the inner end of said spindle the knob K. The knob K is preferably hollow and provided with a stem or boss 17 on its inner side, said stem being formed integral therewith and having a suitable bore for receiving the associated end of the spindle 13. The inner end of the stem 17 extends into a recess 18 formed in the outer face of the bearing plate 11. Said stem 17 is secured against movement in respect to the spindle 13 by a suitable set screw 19.

The outer face of the knob K is formed with a semi-spherical depression 20 and through the bottom of this depression there extends the outer end of the rod 16. The outer end of the rod 16 has secured thereto a segmental plate 21 which may serve as a thgmb plate or finger plate for rotating said ro The knob K consists in a stem 22 which terminates at its one end in an enlargement 23, said enlargement being annular and adapted to serve as the inner side of a door knob. The stem 22 is provided with a suitable central bore for receiving the associated end of the spindle 13. The free end of the stem 22 extends into a recess in the outer face of bearing plate 12, as at 2 1, and the stem is secured upon the spindle 13 against rotation with respect thereto by a set screw 25. The rod 16 carries on its end associated with the knob K, a gear wheel 26 which continuously meshes with a pinion 27 suitably supported by the enlargement 23 of the door. knob and said pinion having formed integral therewith a gear wheel 28. y

The enlargement 23 of the door knob K has threaded upon its free edge or end a hemispherical member 29, said threads being so arranged as at 30 in order that the outer surface of member 29 will be flush with the similar surface of the enlargement 23. The member 29 has formed upon its interior surface a boss 31 to which there is secured a gong 32 by the means of a pair of screws indicated at 33 in Fig. 4 of the drawings. The

member 32 is preferablyof the shape shown,

that is, complemental to the interior of the member 29. From the inner face or surface of the member 32, there extends a stud 3:1 upon which there is rotatably mounted a frame 35, said frame supporting the two knockers 36. The knocker members 36 are supported by the frame in such a manner so that they may have inward and outward movement with relation to said frame. The manner in which the members 36 are supported is illustrated in Fig. 4, that is, by the means of a pin extending through a suitable slot in the member. This is a well known arrangement and the operation of the knockers 36 is understood by those skilled in the art.

The frame as before stated. is rotatably supported by the stud 34- and to the frame 35 there is properly secured a pinion 37 which is adapted to be in constant mesh with the gear wheel 28.

In utilizing the present device or apparatus, upon a person wishing to announce his presence at the exterior oi? the door, he need only rotate the rod 16 by manipulation of the plate 21 and whereupon the nine will be rotated and cause the knockers to strike the gong 32 ant. sound alarm to those within the house or room.

While I have shown and described the preferred form of my invention, 1 wish it to be understood that I am a rare oi the tact that the same may be changed in arrangement of parts and construction thereof to a. slightdegree by those skilled in the art, without departing from the spirit oi my invention as indicated by the appended claim.

I claim In combination, apair of hollow door knobs, each having a stem projecting from the inner side thereof. and each stem being ororided with a longitudinal bore communicating; with the interior of the associated. knob, a spindle having its ends disposed within the stems of said knobs, said spindle being split longitudinally to provide a pin- ,rality of sections, one or said sections being wedgeshaped and the sections adjacent to the wedge section each having a face adapted to co-operate with the wedgesection "for enlarging said spindle when the wedgeshaped section is pressed. inwardly. a set screw carried by each stein adapted to be manipulated for pressing said wedge-shaped spindle section inwardly and thereby clamp the ends of the spindle within the door knob stems, and said spindle sections having their inner edges recessed to provide a bore extending longitudinally and centrally of the spindle, a shaft extending through said here and said shaft having one end disposed within a door knob and its other end extending through the associated door knob and carrying means whereby the shaft may be manually rotated, and a bell. supported within the other door knob and adapted to be operated by the operation of said spindle.

JU'HN i-iLlElCr'ihlDElt BAGIN E 

